Non-base-material AB adhesive tape

Abstract

The invention discloses a non-base-material AB adhesive tape which sequentially comprises an upper release layer, an acrylate adhesive layer, a polyurethane adhesive layer and a lower release layer, wherein the acrylate adhesive layer and the polyurethane adhesive layer are directly fitted without a base material, so that the problems of low transparency, poor exhaust performance, high possibility of degumming and unattractiveness are solved. The non-base-material AB adhesive tape is extremely high in transparency, good in exhaust performance, free of degumming, less in defective gum and more beautiful.

Description

technical field [0001] The invention relates to the field of adhesive tapes, in particular to a substrate-free AB adhesive tape. Background technique [0002] With the rapid development of electronic technology, electronic products, especially large-screen electronic products, have become indispensable products for human beings, and are in close contact with human life. The screen, however, has the risk of being explosive and fragile, threatening the safety of users' lives and property at all times. In the electronic market, in order to effectively prevent the glass panel from breaking and scattering caused by the self-explosion or accidental impact of the touch screen, and reduce the hidden damage of the glass panel, it is necessary to protect the screen to a certain extent. Generally, it is realized by sticking a protective film on the surface of the screen, and in order to fix it firmly, the protective film is usually fixed on the surface of the screen by adhesive tape o...

AI Technical Summary

Problems solved by technology

[0006] 1) The transparency is not high, which affects the visibility, whether it is an electronic product or a car, it affects the use;

[0007] 2) Acrylic adhesives are generally used for those with substrates, which have poor exhaust performance, which limits its application range;

[0008] 3) There are problems of easy degumming and residual glue;

[0009] 4) Not beautiful, due to the existence of the base material, the surface will see through the base material, wrinkles, dark lines, etc., and the base material needs a corona process. During the corona process, there are precipitates and dust There are also more residues, and the overall appearance is not beautiful

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